Results 81 to 90 of about 17,467 (228)

First Record of Chimaeroid Fish (Holocephali: ’Edaphodontidae’) from the Lower Cretaceous of the Middle Volga Region [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Науки о Земле
The record of a mandibular tooth plate of the chimaeroid fish Ischyodus sp. from the Lower Cretaceous deposits of the north of the Saratov Volga River Right Bank is described. The presumed age of the find is the Lower Aptian.
Popov, Evgeniy Valerievich   +1 more
doaj   +1 more source

Fault Slip and Exhumation History of the Willard Thrust Sheet, Sevier Fold‐Thrust Belt, Utah: Relations to Wedge Propagation, Hinterland Uplift, and Foreland Basin Sedimentation [PDF]

open access: yes, 2019
Zircon (U‐Th)/He (ZHe) and zircon fission track thermochronometric data for 47 samples spanning the areally extensive Willard thrust sheet within the western part of the Sevier fold‐thrust belt record enhanced cooling and exhumation during major thrust ...
Barber, D. E.   +5 more
core   +2 more sources

Leaf cuticular morphology links Platanaceae and Proteaceae [PDF]

open access: yes, 2005
Int. J. Plant Sci. 166(5):843–855. © 2005 by The University of Chicago.The leaf cuticular morphology of extant species of Platanus was investigated using light and scanning electron microscopy.
Carpenter, R., Hill, R., Jordan, G.
core   +2 more sources

An overview on Callovian-Cenomanian intracratonic basins of Northeast Brazil: Onshore stratygraphic record of the opening of the southern Atlantic

open access: yesGeologica Acta, 2003
A number of small Callovian-Albian sedimentary basins occur in the NE-trending Araripe-Potiguar topographic lowlying area. These basins developed in a fairly narrow zone of Precambrian supracrustal rocks from the Middle Jurassic onwards, as a consequence
L. M. M. Valença   +2 more
doaj   +1 more source

100 Ma sweat bee nests: Early and rapid co-diversification of crown bees and flowering plants.

open access: yesPLoS ONE, 2020
100 Ma sweat bee nests reported herein are the oldest evidence of crown bees. A new phylogeny for short-tongued bees, calibrated with these nests dated with 40Ar/39Ar, attests for the first time for a late Albian rapid diversification of bees along with ...
Jorge Fernando Genise   +9 more
doaj   +1 more source

Unusual concentration of Early Albian arthropod-bearing amber in the Basque-Cantabrian Basin (El Soplao, Cantabria, Northern Spain) : palaeoenvironmental and palaeobiological implications [PDF]

open access: yes, 2009
The El Soplao site is a recently-discovered Early Albian locality of the Basque-Cantabrian Basin (northern Spain) that has yielded a number of amber pieces with abundant bioinclusions.
Daviero-Gomez, V.   +6 more
core   +3 more sources

The ''sauropod'' from the Albian of Mesnil-Saint-Père (Aube, France): a pliosaur, not a dinosaur

open access: yesCarnets de Géologie, 2005
A vertebra from the Albian of Mesnil-Saint-Père (Aube, eastern Paris Basin), previously identified as the first caudal of a sauropod dinosaur, is shown to be a dorsal vertebra of a large pliosaur.
Buffetaut Eric   +3 more
doaj  

The Global Boundary Stratotype Section and Point (GSSP) for the base of the Albian Stage, of the Cretaceous, the Col de Pré-Guittard section, Arnayon, Drôme, France [PDF]

open access: yes, 2017
Following the unanimous approval of the Executive Committee on the International Union of Geological Sciences as notified on April 8, 2016, the Global boundary Stratotype Section and Point for the base of the Albian Stage of the Cretaceous is defined at ...
Bown, P   +5 more
core   +2 more sources

Hydrogeochemical conditions of oil and gas areas in Yamalo-Nenets oil and gas producing region (Part 1)

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2019
The object of our research is hydrogeochemical conditions of the Mesozoic hydrogeological basin within Yamalo-Nenets oil and gas bearing region. The Mesozoic basin includes the Aptian-Albian-Cenomanian, Neocomian and Jurassic hydrogeological complexes ...
V. A. Beshentsev   +3 more
doaj   +1 more source

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